function sanitize(str) {
    let val = str;
    val = val.replace(/^\s*/gm, '');
    let whiteList = /^((https?|s?ftp|file|blob|mailto|tel):|#|\/|data:image\/)/;
    if (whiteList.test(val)) {
        return val;
    }
    return 'unsafe:' + val;
}
export { sanitize };
